
public class TestInterprecepter {

	public static void main(String[] args) {
		
		int a = 0;
		try{
			a = Integer.parseInt(args[0]);
		}catch (Exception e) {
			// TODO: handle exception
		}
		double t = calc(a);
		System.out.println(t);
		
//		int a1 = 100;
//		int b1 = 2200;
//		int c1 = 300;
//		int a2 = 100;
//		int b2 = 2200;
//		int c2 = 300;
//		int a3 = 100;
//		int b3 = 2200;
//		int c3 = 300;
//		int d =(b1-a1)/c1 + a2 + a3 + b2 - b3 + c1 + c2 + c3;
	}

	private static double calc(int a) {
//		int a = 100;
		int b = 2200;
		int c = 300;
		return (b-a)/c;
	}
}
